2018, Germany, Azerbaijan
Veit Helmer
2015, France
Pierre Léon
2016, Brazil
Cláudia Jouvin
2014, France
Thomas Salvador
2014, Hungary
Gábor Reisz
2015, Bulgaria
Ivaylo Hristov
2018, Romania, Bulgaria
Paul Negoescu
2011, Germany, Russia, Kazakhstan
2008, Germany
1999, Germany
1998, Austria
Valentin Hitz
2017, Estonia, Netherlands, Poland
Rainer Sarnet